Home / 74,781.96-103,199.18-42,957.01

Finding the Fourth Proportional to 74,781.96, 103,199.18 and 42,957.01

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Solution

The fourth proportional to 74,781.96, 103,199.18 and 42,957.01 is: 59,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,781.96 : 103,199.18 = 42,957.01 : x
  2. Step 2: Convert to fraction form
    74,781.96/103,199.18 = 42,957.01/x
  3. Step 3: Cross multiply
    74,781.96x = 103,199.18 × 42,957.01
  4. Step 4: Simplify right side
    74,781.96x = 4,433,128,207.25
  5. Step 5: Solve for x
    x = 4,433,128,207.25/74,781.96
  6. Step 6: Final answer
    x = 59,280.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.